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Phone Directory 815-391 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-391 Rockford, IL Ameritech Illinois Winnebago Landline 07/04/1995

Other Series For Prefixes

815-3910###
815-3911###
815-3912###
815-3913###
815-3914###
815-3915###
815-3916###
815-3917###
815-3918###
815-3919###